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Related Experiment Videos

High-quality-factor Bragg onion resonators with omnidirectional reflector cladding.

Yong Xu1, Wei Liang, Amnon Yariv

  • 1Department of Applied Physics, MS 128-95, California Institute of Technology, Pasadena, California 91125, USA. yong@its.caltech.edu

Optics Letters
|December 3, 2003
PubMed
Summary
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We developed a new model for Bragg resonators and found it can significantly inhibit spontaneous emission. This onionlike cavity design shows promise for advanced optical applications.

Area of Science:

  • Optics and photonics
  • Cavity quantum electrodynamics

Background:

  • Bragg resonators are crucial for controlling light-matter interactions.
  • Approximating spherical symmetry in resonators presents unique challenges.

Purpose of the Study:

  • To model a spherically symmetric Bragg resonator using an onionlike geometry.
  • To analyze the impact of the resonator's stem on its quality factor (Q factor).
  • To investigate the potential for spontaneous emission inhibition.

Main Methods:

  • Development of a transfer-matrix theory for Q factor calculations.
  • Analysis of the geometric effects of the onion stem on cavity properties.

Main Results:

  • The transfer-matrix theory provides accurate Q factor calculations.

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  • The onion stem has a quantifiable effect on the cavity Q factors.
  • Significant inhibition of spontaneous emission is achievable.

    • Conclusions:

    • The onionlike Bragg resonator geometry is a viable approach for controlling spontaneous emission.
    • Omnidirectional cladding layers enhance the performance of onion resonators.
    • This work offers a new design for optical cavities with potential applications in quantum technologies.